Book-trimmer.



N0. 826,075. PAT ENTED JULY 17, 1906.

S. K. WHITE. BOOK TRIMMER.

APPLICATION FILED MAY 9, 1904.

5 SHEETS-SHEET 1- No. 826,075. PATENTE D JULY 17, 1906.

s. 1;. WHITE. BOOK TRIMMER.

APPLICATION FILED MAY 9, 1904.

5 SHEETSSHEBT 2- W v h/// ATTORNEY PATENTED JULY 17, 1906.

s. K. WHITE.

BOOK TRIMMER.

APPLICATION FILED MAY 9, 1904.

5 SHEETSSHEET 3 INVENTOR I 5% 4 WITNESSES:

ATTORNEY v THE nonms Psrnzs 50., wAsHmarmv, n. c.

' No. 826,075. PATENTED JULY 17, 1906.

' s. K. WHITE.

BOOK TRIMMER.

APPLIOATION FILED MAY 9, 1904.

6 SHEETS-SHEET 4.

WITNESSES:

lNVENTOR ATTORNEY 7n: NuRRls Psrsns can w/lsmusrau, 0.45

PATENTED JULY 17, 1906 S. Kr WHITE.

BOOK TRIMMER.

APPLICATION FILED MAYQ, 1904.

5 SHEETS-SHEET 5.

NORRIS PETERS ca, WASHINGTON, 04 c UNITED sTATEs PATENT ornion.

SAMUEL K. WHITE, OF BATAVIA, ILLINOIS, ASSIGNOR TO SMYTH MANUFACTURING COMPANY, AOORPORATION OF CONNECTICUT.

BOOK-TRIMMER.

Specification of Letters Patent.

Patented July 17, 1.906.

Application filed May 9, 1904. Serial No. 207,040.

To all whom it may concern:

Be it known that I, SAMUEL K. WHITE, a citizen of the United States, and a resident of Batavia, county of Kane, and State of Illinois, have invented certain new and useful Improvements in BoolvTrimmers, of which the following is a specification.

My invention relates to paper-cutting machines; and while as to some of its features it may be applied'to paper-cutting machines for general purposes it is more particularly useful in connection with machines for trimming books.

The book-trimming machines heretofore in common use comprise a cutting-table on which are clamped two books or two stacks of books arranged back to back and a pair of parallel cutters, each of which operates in one plane to trim one end of both stacks of books and inanother plane to trim the side of one stack, the cutting-table being given a fourth of a revolution between the successive operations of the cutters. The relative positions of the cutters are varied or adjusted with relation to each other between each suc cessive trimming operation. These machines are intermittent in operation, it being necessary to stop them to remove the trimmed stacks of books and replace them with the books to be trimmed. In these machines also the cutters operate on the cutting-bed in lines which intersect each other at the corners of the books. The soft material (usually wood) of which the cutting-bed is formed breaks away at the points where the cuttinglines intersect, thus rendering the trimming operation imperfect, especially at the corners of the books. Book trimming machines have been suggested in which the book-trimming operations are effected without interruption; but in these machines only one part of the books is trimmed at a time, it being necessary to pass the books through the ma chine once for each trimming operation.

An object of my invention is to provide a machine whereby Without interrupting the operation of the machine one or both ends and the unbound side of each of a series of machine, also to provide a machine whereby all the book-trimming operations are effected automatically and continuously in predetermined succession without adjusting the relative operative positions of the trimming devices between successive trimming operations, also to provide a mechanism whereby the books may be trimmed accurately and uniformly as to size and perfectly as to the character of the trimming operati on, also to provide a machine which may be readily and accurately adjusted for trimming books of different sizes. These and other objects of my invention will more fully appear from the following description.

My invention consists in the novel parts, improvements, and combinations herein shown and described.

In the accompanying drawings, which are referred to herein and form a part hereof, I

have illustrated one embodiment of my invention, the same serving, in connection with the description herein, to explain the principles of the invention and thebest mode contemplated by me of applying those principles.

Of the drawings, Figure l is a side elevation of a machine constructed in accordance with my invention. Fig. 2 is a vertical central longitudinal section, partly in elevation, of the same as viewed from the opposite side from that shown in Fig. 1. Fig. 3 is a vertical transverse section, partly in elevation, of the machine as viewed. from the right in Fig. 2. Fig. 4 is a top plan view of the same, parts being shown in section to illustrate more clearly details of the construction. Figs. 5 and 6 are sectional elevations illustrating certain details of the mechanism. Fig. 7 is an inverted plan, and Fig. 8 is a hori- Zontal section, of a detail of the mechanism. A machine constructed in accordance with one feature of myinvention comprises a plurality of trimming devices arranged to operate on different, parts of a book, bo0k-presenting means, and means for effecting the successive trimming operations of each trimming device in the same plane, whereby ad justment of the trimming devices between successive trimming operations is avoided.

The trimming devices employed may be of any kind suited to the character of the work to be done, and the bookpresenting means may be such as are adapted tothe character of trimming devices employed. The relative positioning and trimming movements between the trimming devices and the presenting means may be effected in any manner desired; but in the best embodiment of the invention the trimming operations are effected by a movement of the trimming devices with relation to the presenting means, and the presenting operations are effected by a movement of the presenting means with relation to the trimming devices. Where the trimmed parts of the book are to be even or smooth, the trimming mechanism consists, in accordance with the best construction, of reciprocating cutters.

Referring to the construction shown, the operative parts of the machine are mounted in a substantially rectangular frame comrising side members 1 and 2 and end memers, one of which is shown at 3 in Figs. 2 and 4. The trimming mechanism consists of three cutters, one for each end, and a third for the side of the book, said cutters being of the reciprocating draw-cut type. Any suitable means may be provided for operating these cutters. As shown, a cutter-frame 5 is mounted for reciprocation on inclined guides 6 and 7, formed on the upper parts of the side frames 1 and. 2, respectively. The frame 5 may be reciprocated by any suitable means. As shown, a horizontal transverse shaft 8 is journaled near its opposite ends in the side frames 1 and 2 at a point somewhat below the plane of the guides 6 and 7. This shaft 8 it provided at each end just outside the side members of the frame with a crank, one of which, 9, is in the form of a disk and the other of which, 10, is in the form of a gear-wheel, by which the power for rotating the shaft is applied. The cranks 9 and 10 are connected by pitmen 1 1 and 12 with the rear end of the frame 5, the pivots for the pitmen being formed on the ends of a shaft 13, arranged transversely of the frame 5 and suitably projecting beyond the sides thereof.

As shown, the crank-gear 10 is driven. by the pinion 14, fixed on a transverse shaft 15, which is journaled in the side members 1. and

' 2 of the frame and provided at an intermedimachine.

sist of a pair of blades 21,

ate point with a gear 16, which meshes with a pinion 17 on the main driving-shaft 18 of the The shaft 18 may be driven from any suitable source of power, as by the beltpulley 19, which is preferably provided with a heavy rim 20, forming a fly-wheel.

The cutters for the ends of the book con- 22, (see Figs. 1, 2, and 3,) removably mounted in the usual manner on a corresponding pair of arms 23 24, carried by and projecting from the forward part of the cutter-frame 5. (See Fig. 4.) For the purpose of varying the distance between the cutters 21 and 22 to adapt the machine to trim books of different lengths the arms 23 and 24 are, in accordance with the construction shown, mounted in a suitable transverse guideway 25 in the frame 5. The arms 23 and 24 are held in the guide ways by means of suitable guide-bars 26, which, if desired, may be constructed to clamp positively the arms 23 and 24 in their adjusted positions, as by means of the bolts 27. For the purpose of facilitating the adjustment of the arms 23 and 24 a right and .left hand screw 28 is provided, the same being journaled at its opposite ends in suitable extensions of the frame 5 and connected to the arms 23 and 24 by threaded openings or nuts therein, one end of the screw 28 being squared to receive an operating handle or wrench. The cutter for the side of the book consists of a cutter-blade 30, removably mounted in the usual way on an arm 31, rigidly bolted to an extension 32 of the frame 5. The cutter 30 is, in accordance with the best construction, mounted in parallel relation with the cutters 21 and 22 and at a suitable point to one side thereof. Each of the cutting-blades may be adjusted with relation to its arm to secure a proper cooperationwith the cutting-bed by means of set-screws in the usual manner. Suitable means may be provided, if desired, to prevent the cutter 30 from springing away from its work, the springing tendency being due to the considerable distance at which the arm 31 is carried from the guides for the frame 5. As shown, a bracket 33 is rigidly fixed on the frame member 2 and is provided at its upper part with a slot 34, which is arranged in parallel} relation to the guides 6 and 7 and is engaged by a pin 35, projecting from one side of the arm 31 near its outer end.

As far as some of the features of my invention are concerned any suitable book-presenting means may be provided. Where cutters of the character described are em. if

ployed, the presenting means consist in the best construction of a rotary member moved intermittently about a vertical axis and provided with a plurality of book-supports, each" arranged in a plane intersecting the axis of the member, preferably at right angles there with and parallel with the cutting edges of, the cutter-blades. In some aspects of this feature of my invention any suitable trimming mechanism may be employed. In the embodiment of the invention illustrated the. book-presenting member consists of a circular. horizontal table 36, mounted to rotate ona';

vertical axis by means of a central depending,

sleeve 37, which .is journaled on a vertical standard 38,fixed to a transverse girder 39, rigidly mounted in the lower part of the frame.

The member 36 is provided with a plurality tating the member 36 to present books carried by the book-supports to the cutters and to transfer them from the cutters for the ends of the books to the cutter for the side of the hooks. As shown, the sleeve 37 is provided with a beveled gear 41, which meshes with a beveled gear 42 of equal size fixed to a transverse shaft 43, suitably journaled in the side frames 1 and 2 and passing directly through the standard 38. Any suitable means may be provided to give the shaft 43 an intermittentrotation. In accordance with the best construction, however, means are provided which will start and stop the shaft and with it the carrier 36 with a gradually accelerating and retarding movement. As shown, the end of the shaft 43, which projects through the side frame 2, is rovided with a member in the form of a dis]? 44, having on its outer face a series of four radial slots 45, one for each of the book-supports 40 on the carrier 36. -A gear 46 is fixed on the end of a transverse shaft 47, j ournaled in the frame in such posit-ion withrelation to the shaft 43 that the center lines of two of the radial slots 45 may be tangent to the path of a pin 48, projecting from the inner surface of the gear 46, said pin being adapted to tfit closely the said slots. The gear 46 is of the same pitch-diameter as the crank-gear 10 and is arranged to mesh with the pinion 14. It follows from this construction that on each revolution of the gear 46 the pin 48 will pass into one of the slots 45 in a tangential direction, so as to start the disk 44 with a gradually-accelerating movement and bring it to rest again with a graduallyretarded movement after rotating it through a quarter of a revolution, the next succeeding slot 45 being thus brought into the path of the pin. The member 36 will thus be given a rotation through a quarterrevolution for each reciprocation of the cutting mechanism, so as to present books carried by the booksupports to the cutters successively and to transfer them from one cutter to the other. Any suitable means may be provided to hold the member 36 between its successive movements. As shown, a stop-lever 49 is pivoted on the frame and is provided with a lug adapted to enter each of a series of recesses equally spaced in the periphery of the member 36. A cam 49, fixed on the shaft 8-, operates the stop-lever in. proper time relative to the movements of the member 36.

- Any suitable means may be provided for clamping the books on the book-supports whilev they are presented to the cutting mechanism and. to release the books, so that the trimmed books may be removed from the book-supports and untrimmed books supplied in their place. As shown, the member 36 is provided with a central standard 50, having four vertical guideways, in each of which is mounted a vertically -movable clamp member 51. For the purpose of opcrating the clamp members each of them is provided with a connecting-rod 52, which is connected to the clamp at its upper end preferably by means permitting a vertical adjustment of the clamp with relation to its connecting-rod. As shown, each connectingrod is threaded at its upper end and is provided with aheaded nut 53, which has a substantially spherical lower end seated in a corresponding recess on the top of the clamp member and held against vertical movement with relation thereto by a suitable bracket or housing 54. Any suitable means may be provided for operating the connecting-rods 52. Preferably, however, self-locking means are provided for this purpose. As shown, each of the connecting-rods 52 is connected at its lower end to a head 55, pivotally connected 'at its lower part to one end of a bell-crank lever 56, pivotally mounted in suitable lugs or projections 57, cast in one piece with the sleeve 37. As shown, the heads 55 are provided with slots to accommodate the pivotpins of the levers 56. When the arms of the levers 56, which project radially with rela tion to the sleeve 37, are moved downwardly, as shown to the right in Fig. 2, it will be seen that the corresponding connecting-rods 52, together with their clamps 51, will be moved upwardly, so as to release the books on the corresponding supports 40. When the radially-projecting arms of the levers 56 are moved upwardly in the position shown at the left in Fig. 2, the rods 52, together with their clamps 51, will by a kind of toggle action be drawn downwardly, and as the center lines of the rods 52 pass the pivots of the levers 56 the clamps will be locked in their lower or clamping position. Any suitable means may be provided for operating the levers 56.

In accordance with the best construction the radially-projecting arms of the levers 56 are moved upwardly to effect the clamping operation while the member 36 is stationary and when the levers, with the corresponding book-supports, are at the side of the machine shown in Fig. 2 and at the left in Fig. As shown, this clamping operation is performed by mechanism located at the side of the machine referred to. This mechanism is shown in end elevation in Fig. 3, plan in Fig. 4, and side elevation in Fig. 5. The mechanism shown consists of a bell-crank lever 58, pivotally mounted on a stud 59, fixed to the side frame 1. One arm of the bell-crank lever 58 is in position to engage the radially-project ing arms of the levers 56, and'the other arm is provided with a friction-roller adapted to bear on a cam 60, fixed on the shaft 47. The cam 60 is so formed and locked on the shaft 47 that during the time that the carrier is stationary the lever 58 will be operated to throw the radially-projecting arm of the lever 56 upwardly. Any suitable means may be provided for throwing the radially-proing mounted in grooves formed in a pair of j ecting arms of the levers 56 downwardly to release the clamps. As shown, a cam-guide 61 is fixed on the end member 3 of the frame, so that as the member 36 is brought to rest at the end of each of its intermittent movements the clamp, which is brought by the movement of the carrier to the position shown at the right in Fig. 4, will be lifted to release the book on the corresponding support 40. During the time that the clamps are passing from the-clamp-operating lever 58 to the releasing-cam 61. they are held in clamping position by the self-locking action of the connecting-rods 52 and levers 56. For the purpose of holding the clamps in their raised positions while they pass from the delivery-point to the receiving-point springs 61 may be provided. As shown, the springs 61F are stretched between the pivot-pins at the lower end of the rods 52 and suitable connections on the under part of the table 36. By arranging the springs so that they pass the pivotal axis of the levers 56 when said levers are moved from one position to another the parts will be securely held in each of their two positions.

Any suitable means may be provided to cooperate with the cutters to effect the trimming operations. In accordance with. the best construction suitable cutting-beds are provided. for this purpose, said beds consisting of blocks or strips of soft material, such as wood, adapted to support the parts of the books to be trimmed and to receive the knife edges after they have passed through the paper. These cutting-beds may be supported in any suitable way. In accordance with the best construction, however, the two out-- 'ting-beds for the cutters 21 and 22 are mounted on and carried by the rotary member 36, while the cuttingbed for the cutter 30 is mounted. in a relatively fixed position on the frame of the machine. In accordance with the best construction, also, the cutting-beds for the cutters 21 and 22 are moved out of operative position with relation to the book when the latter is brought into operative position with relation to the cutter 30, so that the side of the book may be supported througl'iout its length by the cutting-bed for the said knife. The cutting-bed for the knife 30, moreover, is intermittently moved out of its operative position to permit the free rotation of the member 36. As shown, the cutting-beds for the cutters 21 and 22 consist of a pair of strips 62 63, the same beslides 64 and 65, so that they may be readily moved into and out of their operative positions. The slides 64 and are mounted in slideways formed in a pair of blocks 66 and 67, forming part of the book-supports 40. For the purpose of moving the cutting-beds 62 and 63 into and out of operative position means are provided for moving the slides 64 1 and 65 back and forth in the blocks 66 and 67, and to permit the adjustment of the cuttingbeds to and from each other to correspond tothe various positions of the cutters 21 and 22 means are provided whereby the distance between the blocks 66 and 67 may be varied. The details of this mechanism are illustrated in Figs. 2 and 3 in connection with the detail views, Figs. 7 and 8. As shown, the blocks 66 and 67 are so mounted in guideways in the member 36 that they may be moved to and from each other, and they are provided with downwardly-projecting lugs 68 and 69, which have threaded engagement with a right and left hand screw 70, journaled in suitable lugs formed on the under surface of the member 36 and provided with a squared end by which it may be turned in either direction by a suitable handle or wrench. The blocks 66 and 67 are provided on their upper surfaces with recesses adapted to support a filling-block 40, forming the central and main part of the booksupport. When the blocks 66 and 67 are adjusted, the filling-blocks 40 are re moved and replaced by other blocks of a length suitable to fill the space between the adjustable blocks 66 and 67. The means for moving the slides 64 and 65 back and forth to move the cutter-beds into and out of operative position consist of a pair of bellcrank levers 71 and 72, pivotally mounted on suitable journals formed on the lugs 68 and 69, so that when the blocks 66 and 67 are adjusted the levers 71 and 72 will also be adjusted and kept in proper engagement with the slides 64 and 65. The upwardly-projecting arms of the levers 71 and 72 engage in suitable recesses formed in the under surfaces of the slides 64 and 65, and the horizontal arms of said levers (clearly shownin Figs. 3, 7, and 8) have perforations engaged by a transverse bar 73, rigidly mounted and projecting from each side of a centrally-arranged operating-arm 74, which is loosely pivoted at an intermediate point on the right and left hand screw and is vertically guided at its outer end in a yoke 75, fixed to the under surface of the carrier. It will be seen that by moving the outer end of the arm 74 upwardly and downwardly the slides 64 and 65 may be moved back and forth in the blocks 66 and 67 irrespective of the position of said blocks with relation to each other. Any suitable means may be pro vided for operating the arm 74 to move the cutting-beds 62 and 63, carried by the blocks 64 and 65, into and out of operative position. As the cutting-beds 62 and 63 need to be moved backward out of their operative positions only when the book-supports are at the side of the machine on which the cutter 30 is located, the means hereinafter described for operating the cutting-bed for the cutter 30 may be used to operate the arms 74. In order that the cutting-beds 62 and 63 may be released from pressure-contact with the ends i rotation of the carrier 36, said cutting-bed is 1 beds which face of the vertically-moving frame or carrier 81, slidably mounted in suitable guides in the said frame 2. Any suitable means may be provided for intermittently moving the frame 81 up and down to carry the cuttingbed into and out of operative position. As shown, the frame 81 is connected at its lower end to one member 82 of a toggle, the other member 83 of which is pivoted in a suitable socket formed in a lug on the side frame 2. For the purpose of operating the toggle the pivot-joint between the members '82 and 83 thereof is connected by a link 84 with an arm 85, pivoted to a stud 86, fixed on the side frame 82. The arm 85 is provided at an intermediate point with a fr'iction rollel' adapted to bear on a cam 87, fixed on the shaft 17. The cam operates through the connections described to straighten the toggle and lift the frame 81 and carry the cuttingbed into operative position. A spring 88 is provided to retract the arm 85 and break the toggle, so as to lower the cutting-bed below the plane of the member 36, so as to permit the rotation of the latter. The sides of the member 36 opposite the book-supports 40 v are flattened to correspond with the side of the frame 81, so that when the latter is raised to carry its cutting-bed into operative position it will serve, in addition with stoplever, previously described, to lock the member 36 and hold the same firmly in its position of rest, so that the books may be held in uniform and accurate position with relation to the cutters. For the purpose of operating the arms 74 to move the cutting-beds 62 and 63 out of the path of the cutting-bed frame 81, the latter is provided with a suitable horiarms 74 are successively entered at the ends of the intermittent movements of the table 36.

It will be seen that the cutters operate to trim the book in lines or planes which intersect each other and that the cutting-beds support the books along lines which intersect each other. The means whereby the cuttingsupport the books along lines which intersect each other are moved into and out of operative position I regard as an important feature of my invention, as by these means the trimming operations on the books may be effected in a perfect manner.

The parts of the books which are being trimmed will be supported throughout their entire length by cutting-beds, each of which cooperates with a single cutter, thus insuring a perfect action without liability of tearing the paper at the corners of the books.

For the purpose of enabling the books to be readily applied to the book-supports any suitable guiding means may be provided. As shown, the member 36 is provided at the back of each of the book-supports with a pair of gages 90, each of which is adjustably mounted in a groove formed in' the upper sursecured to the member 36 by a clamp-screw 91, which passes through a suitable slot. The position of the booksendwise of the booksupport may be conveniently fixed by means of a suitable mark on the book-support at one or both ends thereof, or a positive mechanical gage may be provided, if desired.

The operation of the machine briefly is as follows: The books to be trimmed one or more at a time are fed in succession to the book-supports 40 while they stand at rest in the position shown at the left in Fig. 3. Just before the member 36 begins its intermediate movement the book-clamp is actuated to clamp the book, and the clamp being locked the book is carried in its clamped position beneath the cutters 21 and 22. While the book-support rests in this position the cutters are brought down and trim the ends of the book. If it is desired to trim onlyone end of the book, one of the cutters 21 or 22 will be rendered inoperative. This may be accomplished by removing one of the cutters or by setting them apart a distance greater than the length of the book and then placing the book so that the end which it is desired to trim will come beneath one of the cutters. Another book having been placed on the book-support at the left of the machine the member 36 is given another quarter-revolution. This will bring the first book beneath the cutter 30 and the second book beneath. the cutters 21 and 22. The cutting-beds for the end trimming-cutters on the first booksupport will be moved backwardly and downwardly out of operative position with relation to the book, as that support approaches the right-hand side of the machine, and when w the member has finished its movement the zontal slot 8]. into which the ends of the J cutting-bed 80 will be brought up into operative relation with the book, the frame 81 serving at the same time to lock securely the carrier 36 in its position of rest. On the next downward movement of the cutter the ends of the second book and the side of the first book will be trimmed. The cutting-bed 80 is then lowered and the member 36 given another quarter-revolution, a third book havin in the meantime been placed upon the third book-support. This movement of the member will bring the first book to the deliverypoint, (shown at the right in Figs. 2 and 4,) the clamp during the last part of the movement of the member 36 being lifted to release the book; To adjust the machine for different sizes of books, it is only necessary to set the cutters 21. and 22 by turning the screw 28 and, if necessary, to first loosen and then tighten the clamps 26, then adjust the cutting-ber s 62 and 63 of each book-support by turning the screws 70, the filling-blocks 40 being removed and replaced by others of a proper length, and then, if necessary, adjusting the gages 90 for the backs of the books. It will thus be seen that the operation of the machine is uninterrupted. The machine is not stopped to put in and take out the books, and the operative positions of the cutters are not adjusted between the successive trimming operations, as in the trimming-m achines heretofore commonly used. The trmming operations may be effected in a perfect manner and very rapidly, and the machine may be easily adjusted for trimming books of different sizes.

My invention in its broader aspects is not limited to the particular construction shown and described nor to any particular construction by which it has been or may be carried into effect, as many changes may be made in the construction without departing from the main principles of the invention and without sacrificing its chief advantages.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a book-trimmer, the combination with a plurality of trimming devices arranged to operate on different parts of a book and each of said devices always operating on the same part of the book, of a book-supporting means, and means for effecting a relative positioning movement between. the trimming devices and the supporting means without varying the relative positions of the planes in which the trimming operations are effected.

2. In a book-trimmer, the combination with a plurality of trimming devices arranged to operate on different parts of a book and each of said devices always operating on the same part of the book, of a book-supporting means, means for effecting a relative trim ming movement between the trimming devices and the supporting means, and means for effecting a relative positioning movement between the trimming devices and the supporting means without varying the relative positions of the planes in which the trimming operations are effected.

3. .In a book-trimmer, the combination with a plurality of trimming devices arranged to operate on different parts of a book and each of said devices always operating on the same part of the book, of a book-supporting means, means for operating the trimming devices whereby each effects its successive trimming operations in the same plane, and means for operatmg said supportlng means to present a book to said trimming devices successively.

4. In a book-trimmer, the combination with a plurality of reciprocating cutters arranged to trim different parts of a book and each of said cutters always operating on the same part of the book, of a book-supporting means, means for reciprocating the cutters to effect the successive trimming operations of each in the same plane, and means for operating said supporting means to present books to said cutters successively.

5. In a book-trimmer, the combination with a book-supporting means of trimming mechanism including a side-trimming device and an end-trimming device, means for effecting a relative positioning movement between the trimming mechanism and the supporting means, and means for effecting a relative trimming movement between the trimming mechanism and the supporting means, the trimming devices being so located with respect to the supporting means that successive trimming operations by each trimming device occur in the same plane whereby adjustment of the trimming devices between successive trimming operations is avoided.

6. In a book-trimmer, the combination with a plurality of reciprocating cutters arranged to operate on different parts of a book and each of said cutters always operating on the same part of the book, of means for reciprocating said cutters to effect the successive trimming operations of each in the same plane, book-presenting means comprising a rotary member, and means for intermittently rotating said member to present the books to the cutters successively.

7. In a book-trimmer, the combination of a trimming device arranged to always operate on the same part of the book and effect the successive trimming operations thereon in a single plane and a book-presenting means comprising a rotary member mounted for rotation on an axis parallel to the plane in which the trimming device operates and hav ing a plurality of book-supports, each ar ranged in a plane transverse to the axis of the presenting means.

8. In a book-trimmer, the combination of a reciprocating cutter arranged to always operate on the same part of the book, means for reciprocating said cutter to effect the successive trimming operations in a single plane, a book-presenting means comprising a rotary member mounted for rotation on an axis parallel to the plane in which the cutter operates and having a plurality of book-supports, each arranged in a plane transverse to the axis of the book-presenting means.

. 9. In a book-trimmer, the combination of a reciprocating cutter arranged to always operate on the same part of the book, means for reciprocating said cutter to effect thessuccessive trimming operations in the same plane, a

book-presenting means comprising a rotary member having a plurality of book-supports arranged in planes transverse to the axis of the rotary member, a cutting-bed independent of the rotary member, and means for moving the cutting-bed into and out of the plane of the book-supports on the rotary member.

10. In a book-trimmer, the combination of a reciprocating cutter for trimming one end of a book, a reciprocating cutter for trimming a sideof the book, means for reciprocating said cutters, and means including a crank and a rotating part having slots adapted to assume a tangential position With relation to the path of the crank for intermittently moving said rotary member With a gradually accelerated and retarded movement.

11. In a book-trimmer, the combination of a reciprocating cutter for trimming one end of a book, a reciprocating cutter for trimming a side of the book, means for reciprocating each of said cutters in the same vertical plane during successive operations, a rotary member for presenting a book to said cutters successively, and means for intermittently moving said rotary member on a ver tical axis.

12. In a book-trimming machine, the combination of a pair of cutters for trimming the ends of a book, a separate cutter for trimming a side of the book,means for reciprocating said cutters in unison, and an intermittently-moving rotary member for simultaneously presenting two books to said outters, the axis of rotation of said rotary member being arranged at an angle to the path of movement of the cutters.

13. In a book-trimmer, the combination of a cutter for trimming one part of a book, a cutter for trimming another part of the book, means for supporting the book While being trimmed, means for operating said elements to trim the different parts of the book successively, a separate cutting-bed for each cut ter, and means for bringing said cutting-beds into operative relation With the book succes sively.

14. In a book-trimmer, the combination of a cutter for trimming one part of a book, a cutter for trimming another part of the'book, means for presenting the book to said cutters successively, a separate cutting-bed for each cutter, and means for bringing said cuttingbeds into operative relation with said cutters successively.

15. In a book-trimmer, the combination of a cutter for trimming one part of a book, a cutter for trimming another part of the book, means for transferring the book from one cutter to the other, and a separate cuttingbed for each cutter, one of said cutting-beds being movable with the book and the other cutting-bed being relatively fixed. l

16. In a book-trimmer, the combination of a cutter for trimming one part of a book, a cutter for trimming anotherpart of the book, means for transferring the book from one cutter to the other, a separate cutting-bed for each cutter, one of said cutting-beds being movable With the book and the other cuttingbed being relatively fixed, and means for bringing said cutting-beds into operative relation With the book successively.

17. In a book-trimmer, the combination of a cutter for trimming one part of a book, a cutter for trimming another part of the book, an intermittently-moving rotary member for transferring the book from one cutter to the other, and a separate cutting-bed for each cutter, one of said cutting-beds being in ounted on said rotary member and the other on a relatively stationary part of the machine.

18. In a book-trimmer, the combination of a cutter for trimming one part of a book, a

cutter for trimming another part of the book, an intermittently-moving rotary member for transferring the book from one cutter to the other, a separate cutting-bed for each cutter, one of said cutting-beds being mounted on said rotary member and the other in a-relatively stationary part of the machine, and means for moving the cutting-bed on the rotary member into and out of operative relation With the book.

19. In a book-trimmer, the combination of a cutter for trimming one. part of a book, a cutter for trimming another part of the book, an intermittently-moving rotary member for transferring the book from one cutter to the other, a separate cutting-bed for each cutter, one of said cutting-beds being mounted on said rotary member and the other on a relatively stationary part of the machine, and means for moving the relatively stationary cutting-bed into and out of operative relation With the book.

20. In a book-trimmer, the combination of a cutter for trimming one part of a book, a cutter for trimming another part of the book, an intermittently-moving rotary member for transferring the book from one cutter to the other, a separate cutting-bed for each cutter, one of said cutting-beds being mounted on said rotary member and the other on relatively stationary part of the machine, and means for alternately moving each of said cutting-beds into and out of operative relation With the book.

21. In a cutting-machine, the combination With cutting mechanism, of a plurality of cutting-beds adapted to support the material to be out along intersecting lines, and means for moving one of said cutting-beds into and out of operative position.

22. In a cutting-machine, the combination With cutting mechanism, of a plurality of cutting-beds adapted to support the material to be out along intersecting lines, and means for moving said cutting-beds alternately into and out of operative position.

23. In a cutting-machine, the combination with cutting mechanism, of a rotary member for carrying the material to be cut to and from the cutting mechanism in a plane intersecting the axis of said member, a clamp for the material to be cut movable in the direction of the axis of said member, means for closing the clamp at one point only during each revolution of the rotary member, and means for opening the clamp at another point during each revolution of said rotary member.

24. In a cutting-machine, the combination with cutting mechanism, of a rotary member for carrying the material to be cut to and from the cutting mechanism, a clamp for the material to be cut, self-locking mechanism for operating said clamp, and means for automatically actuating said clamp-operating means, said means being located on a relatively stationary part of the machine and being brought into operation by the rotation of the carrying member.

25. In a book-trimmer, the combination with trimming mechanism, of a rotary member having a plurality of booksupports arranged in planes intersecting the axis of said rotary member, a book-clamp for each sup port, said clamps being movable in the direction of the axis of said rotary member, automatic means for closing the clamps at one point in the rotation of said member, and means for opening said clamps at another point in'the rotation of said member.

26. In a book-trimming machine, the combination with trii'nming mechanism, of a rotary member having a plurality of booksupports, a book-clamp for each support, independent mechanism for operating each clamp, and means located on a relatively fixed part of the machine for actuating said clamps.

27. In a book-trimmer, the combination with trimming mechanism, of a rotary member having a plurality of book-supports, ar ranged in planes intersecting the axis of said rotary member, a book-clamp for each support, said clamps being movable in the direction of the axis of said rotary member, independent mechanism l or operating each of the said clamps and means located on a relatively fixed part of the machine for actuating said clamps.

28. In a book-trimmer, the combination with trimming mechanism, of a rotary mem ber having a plurality of book-supports, a book-clamp .for each support, independent mechanism for operating each of said clamps, means for actuating said mechanism to clamp the books at one point in the rotation of said member, and means for actuating said clamp-operating mechanism to release the books at another point in the rotation of said rotary member.

29. In a book-trimmer, the combination with trimming mechanism, of a rotary member having a plurality of book-supports, each located in a plane intersecting the axis of said rotary member, a book-clamp for each support, said clamps being movable in the direction oithe axis o'l' said rotary member, independent mechanism for operating each of said clamps, means for actuating said clampoperating mechanism to clamp the books at one point in the rotation of said rotary member, and means for actuating said clamp mechanism to release thebooks at another point in the rotation of said rotary member.

30. In a cutting-machine, the combination of a pair of cutters, means for reciprocating said. cutters in unison, a pair of cutting-beds for said cutters, and mechanism for varying the distance between said cutters and be tween said cutter-beds.

31. In a cutting-m achine, the combination of a pair of cutters mounted for reciprocation on a fixed part of the machine, means for re ciprocating said cutters in unison, a pair of cutting-beds for said cutters mounted on a relatively movable part of the machine, means for moving said movable member to bring said cutting-beds into and out of operative relation with said reciprocating cutters, means movable with said cutters for varying the distance between them, and means movable with said cutting-beds for correspondingly varying the distance between said cutting-beds.

32. In a book-trimmer, the combination of a pair of cutters for trimming the ends of a book, a cutter for trimming the side of a book, said cutters being mounted for reciprocation on a relatively fixed part of the machine, means for reciprocating said cutters in unison, a rotary member for presenting the books to said cutters, a pair of cutting-beds mounted on said rotary member for cooperation with said pair of end-trimming cutters, a suitable cuttingbed for the side-trimming cutter, means for varying the distance between said end-trimming cutters, and means for correspondingly varying the distance between the cutting-beds for said cutters, substantially as described.

33. A paper-trimming machine, provided with three cutting-knives arranged in parallel planes, with means for actuating them, and an intermittently-rotating table to feed the paper into proper position to be cut.

34. A paper-trimming machine, provided with three cutting-knives arranged 1n paral lel planes, with means for actuating them, and an intermittently-r0tating table to feed the paper into proper position to be cut, and clamps for holding the paper bundles during the feeding operation.

35. A paper-trimming machine, provided with three cutting-knives arranged in parallel planes, with means for actuating them,

' lel planes,

and an intermittently-r0tating table to feed the paper into proper position to be cut, and clamps for holding the pa er bundles during the feeding operation, with means for releasing the clamps successively after the bundles are trimmed.

36. A paper-trimming machine, provided with three cutting-knives arranged in paralwith means for actuating them,

and an intermittently-rotating table to feed the paper into proper position to be cut, with means for locking the table during the cutting operation.

37 In a paper-trimmer machine, the combination with a cutting-head and means for operating same, of three cutting-knives mounted in said cutting-head in parallel planes, and a rotatable table carrying clampbars independently operable, to clamp successive paper bundles on the table, means for rotating the table intermittently to present the paper-bundles successively to the operation of the knives, and means for releasing the clamps successively upon the completion of the knife-strokes.

38. In a paper-trimming machine, the com bination with a cutting-head and means for operating same, of three cutting-knives mounted on said cutting-head in parallel planes, and a rotatable table carrying clampbars, independently operable, to clamp successive paper bundles on the table, means for rotating the table intermittently to present the paper bundles successively to the operation of the knives, a lock for the table with mechanism for operating same to lock the ta ble during the knife-strokes, and means for releasing the clamps successively upon the completion of the knife-strokes.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

SAMUEL K. XVI'IITE.

WVitnesses:

GEORGE E. GOLDTHWAITE, WM. L. ANDERSON. 

